Connecting rod



June 2,1925.

s. D. HAl QTOG CONNECTING ROD Filed Feb. 26. 1923 w If? l" 13 5 a /0 14Z0 //7l e/7/5/2 1573 0/76 flarfg,

Z r g /7/5 fi'a/weg Patented June 2, 1925. V

UNITED flsrarss s'rnrnnn 1). names, 01" nnnnnvrnnn, rnnrnoxs.

comrnorine non.

Application filed February as, was; ;sae1ao.fl6a,%1.'

To all whom it may concern. v

Be 1t known that I, STEPHEN D. Han'ros,

a citizen of the United States, residing the "city of Bt-glleville St.Clair fiounty llli nois, have ini 'ented a new and useful-linprovementin, Connecting Rods, or wlnch the following is a specificatmn;

This" invention relates to improvementsin connecting rods, and consistsin tl e novel construction hereinafter disclosed.

An object of the invention is to provide as a new article'ot manufactureit connectingrod that may be made or light metal having the conformationand design to give it a high degreeoi strength.

Anotherobject oi the invention is to provide as anew article ofmanufacture a con-- necting rod having novel means for lubrieating thecrank shaft bearing.

Another object of the invention is to provide as a new article ofmanufacture a connecting rodhaving fins encompassing the bearingportions of the rod, whereby the heat from the bearings is'conductedover an extended radiating surface to maintain the bearing sections in acooled condition.

\Vith the foregoing as well as additional advantageous features in View,I have produced a connecting rod of the structure hereinafter more fullydisclosed, reference being made to the accompanying drawing in whichrod. i

Fig. 2 is a frontelevation of the same.

Fig. 8 is a cross section taken onthe line 33 of Fig. 1. i

Fig. 4; is a cross section taken on the line of Fig. 2.

Fig. '5 is a cross section taken 011 the line 5-5 of Fig. 2. p

In the embodiment of the invention illus trated 'in the drawing the bodyportion of the connecting rod is shown as formed of Fig. 1 is a sideelevation of the connecting.

and 6 respectively. An. "intermediate rib 7 extends outwardly from. thewall. 'oiithe cylindrical portion 4:. 'llie cylindricalfpo rtion 4 isbored out forming an orifice 8 for the reception of the wrist pin. .The.purpose Oil the ribs. 5, 6 and 7"is to forman extended radiatingsurface. for maintaining the wrist pin bearing. in a cool condition.v Atthe lower end of the; connecting rod body'is formed acylin'drical'portion. 9, the trout and back walls of wh ch are. provided with asul'istantially semi-circularvertical extension 10. The portion 9 isbored out at the center forming an orifice ll consti tuting the crankshaft journal bearing, and the side walls i an intermediatehorizontalline 112 so, as to form the bearing in two. portions in order to makethe proper adjustnie nt v with the. crank shaft arm. The two sections ofthe bearings are held togetherby pi.1 1s 13.ea{ tenng'through verticalopenings 14 in the portions 10.

y I n The inner surface of the cylindrical por tion 9 has parallelannular grooves 15 and 16 therein, and passage ways 17 and 18' are cutthrough the upper wall ot the port-ion Set the base ofthe channels 2 and3 respectively.

It will be noted that at the base of each channel 2 and "3 a pocketinwhich lubricating oilaccuinulates by the oscillation. of theconnecting rodin the crank case and. that the oil pocketed thebase' ofthe channelsis free vto flow throiugh (he openings I'Zand 18 to thegrooyesflti' and 16 for lubricatingthecrahk shaftjournal. It will also.be noted that, V the wall 1 is erilendcd downwardly at each side formingflan es or ribs .19 and 20: en-:

COZIIPSV SSlHg thG bearing. portion 9. These IllOS SGIVB to form anextended radiat ng su e 4 between the connecting rod. and thepcranli.

shaft inla coolcondition.

' 'lhe connecting rod is preferably madeor a metal casting the greaterproportion of which is aluminum. It is. possible to make a connectingrod because of the novel construction thereofof very light material andat the same time increasing the tensile strength thereof.

I am aware that the invention may he z-nodified in numerous particularswithout departing from the spirit and scope therea l do not limit myselfto unessential respectively there .is formed.

cc to maintain the bearing connection.

are paried substantially on i particulars, but what I claim'and desireto secure by Letters Patent is 1. As a new article of manufacture, aconnecting rod comprising a continuous wall shaped to form parallelchannels in opposite faces thereof in which the edges are spaced fromthe remaining portion, said channels overlapping each other, a Wrist pinbearing carried at one end of said rod, and a bearing portion at theopposite end of said rod.

2. As a new article of manufacture, a connecting rod comprisingavcontinuous wall substantial-1y S-shaped in cross section in-which theedges are spaced from the rem'aining portion, a wrist pin bearingcarried at one end of said rod, and a split bearing portion at theopposite end of said rod.

3. Asa new article of manufacture, a connecting rod having a bodyportion formed of'a continuous wall substantially S-shaped in crosssection having an open longitudinal'channel at each of two sides,a wristpin bearing carried at one end of the body portion, a split bearingportion at the opposite end of said body portion, and ribs formed on theouter wall of said bearing portions respectively. 7

4. As a new article of manufacture, a connecting rod having a bodyportion formed of a continuous wall providing laterally spaced channelsin opposite faces of said body portion and opening toward opposite sidesof the axes of the bearings hereinafter mentioned, said channelsoverlapping each other, a wrist pin bearing carried by one end of thebody portion, a bearing portion at the opposite end of said bodyportion, and extensions on the ends of the body portion around each ofsaid bearings forming ribs effectively to increase the strength of theconnecting rod and to provide heat radiating surfaces for maintainingthe bearings in a. cooled condition.

5. As a new article of manufacture a connecting rod comprising anintegral casting substantially S-shaped in cross section and havingchannels opening in opposite directions, a bearing integral with one endof said casting, ribs extending around said bearing in continuation ofthe edges of the S of said casting, a half bearing member integral withthe opposite end of said casting, and a detachable half bearing memberconnected with said first named half bearing member and forming acomplete bearing.

6. As anew artlcle of manufacture, a connecting rod comprlsmg a'bodyportion havbodyportion, there being cavities formed at the base of saidchannels adjacent to the lower bearing portion of the rod adapted toreceive a lubricant, and passage ways leading from the cavities throughthe wall of the bearing. H

As a new article of manufacture, a connecting rod having a metalliccompos1t1on the greater proportion of which consists of aluminum, saidrod comprising a body portion formed from a continuous wall cast to formthe body portion substantially S-shape in cross section, a splitconnecting rod bearing at the lower end of said rod, a wrist pin bearingat the opposite end of said rod,"

there being relatively deep cavities formed at the base of the channelsin the body poltion adapted to receive and contain lubricant, andpassage ways leading from said cavities through the wall of the bearing.

8. A connecting rod of the character described having an open channel011 each of two opposite sides, each channel extending beyond the bottomwall of the other channel.

9. A connecting rodof the character, described having an open channel oneach of two opposite sides,each channel extending beyond the bottom wallof the other channel transversely of the axes of the bearings, andabearing at each end of said rod. I

10. A connecting rod of the character describedcomprising a castinghaving a wrist pin opening at its upper end and including a bearingportion at its lower end and having an open channel in each of twoopposite sides extending fromthe upper end of the casting to saidbearing portion, each channel extending beyond the bottom wall of theother channel transversely of the axis of said bearing portion and saidwrist pin opening and having an opening from each of said channelsthrough said bearing portion. v

11. A connecting rod of the character described comprisinga castinghaving a bearing at each end thereof and having a channel on each of twoopposite sides opening outwardly transversely of the axes of saidbearings and each channel extending beyond the bottom wall of the otherchannel, and the outer walls of said channels uniting integrally withsaid bearings inwardly a short distance from the ends of said bearings.

STEPHEN D. HAR-TOG.

